Crocs are naturally wary of humans but, if you approach with stealth, you can observe them on your Mozambique safari in almost any river in Gorongosa and on the shores of Lake Urema. If it's cool, the crocs must leave the water first thing in the morning to bask in the warm sun. They're cold-blooded, so they rely on the temperature of the sun to heat up and the temperature of the water to cool down. When they're cool, they seem to move in slow-motion. But when they're warmed up, they can move like sprinters.
When on a game drive, do not leave your vehicle and approach the edge of the river. Crocs are opportunistic and are programmed to hunt. You may not see them but Nile crocs are likely to be submerged in the river and can burst from the water at incredible speeds to capture prey. Needless to say, don't go swimming in Gorongosa's rivers and lakes either. Keep your swimming trunks dry until you get to the swimming pool in Chitengo!